Renesas RTKA214250DE0020BU Manual

RTKA214250DE0020BU
The RTKA214250DE0020BU evaluation board
provides a simple platform to evaluate the 3×3mm
8 Ld DFN and SOIC version of the
same board.
The RAA214250 is a low-dropout linear voltage
regulator that operates from 2.5V to 20V and provides
up to 500mA of output current with a typical dropout
of 269mV. The output voltage is adjustable with
external feedback resistors anywhere from 1.224V to
18V.
R16UZ0023EU0100 Rev.1.00
Sep 23, 2021
RAA214250
V
IN
2.5V – 20V
C
C
1 2
10µF 1µF
V
EN
2.5V – 20V
Figure 1. Block Diagram - SOIC
V
IN
2.5V – 20V
C3 C4
10µF 1µF
V
EN
2.5V – 20V
Figure 2. Block Diagram - DFN
Features
▪ Wide input voltage range: 2.5V to 20V
on the
▪ Adjustable output voltage range: 1.224 to 18V with
±2% accuracy
▪ Excellent line and load regulation
▪ Stable with MLCC output capacitor as low as 2.2µF
▪ Integrated Fault protections including thermal
shutdown and short-circuit current limit with
foldback
▪ 3mm×3mm DFN and SOIC can be evaluated on
the same board
Specifications
This board is specified for the following operating
conditions:
▪ V supply: 2.5V to 20V
IN
▪ V adjustable by changing the feedback resistor
OUT
divider.
▪ Low Dropout of 269mV at 500mA
▪ Short Circuit Current Limit Protection with fold-back
at higher input voltages
VIN VOUT
R
VIN VOUT
100kΩ
VEN ADJ
GND NC
RAA214250
R
57.6kΩ
VIN VOUT
R3
VIN VOUT
100kΩ
VEN ADJ
GND NC
RAA214250
R4
57.6kΩ
Evaluation Board Manual
V
OUT
3.3V,
I
OUT ( MAX)
C
500mA
6
1
22pF
(optional)
C
5
4.7µF
2
V
OUT
3.3V,
I
C8
OUT ( MAX)
500mA
22pF
(optional)
C7
4.7µF
© 2021 Renesas Electronics
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